What does the Bible say about the nature of sin in relation to salvation?

Scripture is clear that all have sinned and fall short of the glory of God, indicating our need for divine redemption. Isaiah 1:25 emphasizes that God purges away dross, which represents our sinfulness. Salvation necessitates that every individual recognizes their total depravity—unable to save themselves, as articulated in Romans 3:23. The only means of overcoming this barrier is through the sacrificial atonement of Christ, who bore that sin in our place, thus enabling us to become righteous before a holy God. The necessity of divine action in removing our sin is paramount in understanding our need for salvation.